this morning they put out a tracking poll that said the race was tied. this afternoon they put out a second tracking poll saying obama had a five point lead. what can you make of that? >> being a pollster's a tough job, you know. tough job. >> cornell, what do you make of the michigan poll? >> i think you're seeing a lot of fluidity in the electorate right now. look, romney had a great debate but i think that's somewhat fool's gold, because you talk to my friends that worked on kerry campaign about great debates. i think romney did give the electorate a chance to take a second look at him, particularly the undecided voters who were leaning republican from the start. i wouldn't put a lot of weight in any of these national polls for the next couple days. i think in the next week or so you will see some battleground state polls come out. those will be a more clear i think those will be a more clear indication of whether or not the dynamic has changed. >> ari, before last week, president obama was showing strong signs of improvement on the economy, closing t